metal reactions year 8

Metal + Acid -> ___ + ___

• Salt + Hydrogen

• Metal Hydroxide + Hydrogen

• Metal Oxide + Hydrogen

• Metal Carbonate + Hydrogen

Sodium + Hydrochloric acid ->

• Sodium chlorine

• Sodium chlorine + hydrogen

• Sodium chloride + hydrogen

• Sodium chloride

Lithium + nitric acid ->

• Lithium nitride + hydrogen

• Lithium nitric + hydrogen

• Lithium nitrogen + hydrogen

• Lithium nitrate + hydrogen

How can you test for hydrogen gas?

• sniff it

• squeaky pop test

• add universal indicator

• add lemon water

Metals are good conductor of

• Only heat

• Only electricity

• Heat and electricity both

• None of the above

Which nonmetal is very essential for our life is

• Iodine

• Oxygen

• Nitrogen

• Chlorine

What is the addition of oxygen to a substance called?

• decomposition
• reduction
• oxidation
• extraction

Silver and Gold are found naturally and are easily separated from impurities because _____.

• They are expensive.

• They are very unreactive.

• They are too reactive.

• None of the above.

What does 'brittle' mean?

• Soft
• Easily breakable
• Easily bendable
• Tough

A neutralisation reaction is a reaction between 

• Acid and a Base 
• Acid and water 
• Base and water 
• None of the above